Reagent Calculator
Windows software for the calculation of molecular weight, molecular formulas, mass percentages, mass spectroscopy fragments and adducts, and elemental analysis component; also includes a reagent library.
Chemical Calculator
Free Windows program for calculateing conversion factors between compounds, concentration, and amount of substance in solution.
Solution Solver Chemistry Calculator
Windows program for calculating molecular mass, dilutions, conversions, radioactive decay. Free trial version available.
Chemical Calculator
Chemistry shareware for Windows which calculates the amount of reagent to use when mixing, diluting, and dispensing solutions.
ChemBuddy
Calculators for pH, solution preparation and concentration conversion, acid-base equilibrium, buffer, hydrolysis, and dilution calculations.
Isotope Pattern Calculator v2.0
A JavaScript shareware program that calculates isotopic ratio patterns for molecular fragments.
JFormula
Information System intended to support multi-stepped technological processes that can be defined on a table of mixes and ingredients and do not involve chemical reactions. The system includes an algorithm to calculate material requirements.
ChemSolutions
Calculates concentrations and amounts of substance in solutions visually by drawing a schema. Free demo version for Windows.
Laborant Chemstation
English version of German freeware data analysis program, for various calculations including stoichiometry, pH, thermochemistry, and kinetics.
Visual MINTEQ
A free equilibrium speciation model, which calculates chemical equilibria in aqueous systems at low ionic strength.
Norgwyn Montgomery Software
NGMSI sells software for 3-D molecular modeling, chemical database creation and manipulation, 2-D publication quality drawing, calculation of over 100 physical properties from structure, automatic chemical internet database generation, and QSAR and QSPR analysis as well as chemical databases.
MS Tools
Online exact mass calculator, mass spectrum generator, and isotope distribution calculator.
Physicochemical Calculators
Simple online and offline calculators for boiling point at reduced pressure, unit conversion, and molecular mass.
Chemistry Functions
Molar conversions and an interactive periodic table directly on the webpage. Requires JavaScript.
Elem
Free program for the interpretation of elemental analysis results. For Windows and Unix; source code available.
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